fix: add tech preview warning

[wtrocki]

Adding warning for size x2 of standard instances (subject to change dynamically in near future)
Warning is displayed only when user specifies size (no default sizes are included)

Verification

[wtrocki@graphapi app-services-cli (add-warning-kafka-size ✗)]$ rhoas kafka create --name=test --provider=aws --region us-east-1 --dry-run  --size=x2 
Selected Kafka size is available under technology preview
Dry run successful, arguments are valid
[wtrocki@graphapi app-services-cli (add-warning-kafka-size ✗)]$ rhoas kafka create --name=test --provider=aws --region us-east-1 --dry-run  --size=x1 
Dry run successful, arguments are valid
[wtrocki@graphapi app-services-cli (add-warning-kafka-size ✗)]$ 

[wtrocki@graphapi app-services-cli (add-warning-kafka-size)]$ rhoas kafka create --dry-run
? Name: test
? Cloud Provider: aws
? Cloud Region: us-east-1
? Instance type: x2
Selected Kafka size is available under technology preview
Dry run successful, arguments are valid
[wtrocki@graphapi app-services-cli (add-warning-kafka-size)]$ 

[wtrocki]

Not sure about this being good explanation

[bhardesty]

It might be helpful to point to the official tech preview definition:

This Kafka instance size is a Technology Preview feature. Do not use it for production use. For more information, see https://access.redhat.com/support/offerings/techpreview/.

[rkpattnaik780]

The messages dont fit well when only one size is available:

./rhoas kafka create --dry-run                                                                   
? Name: test-instance-2
? Cloud Provider: aws
? Cloud Region: us-east-1
Selected Kafka size is available under technology preview
Dry run successful, arguments are valid

[wtrocki]

The messages dont fit well when only one size is available:

Is that for developer instance? Something might have changed on backend since I have tested that

[rkpattnaik780]

The messages dont fit well when only one size is available:

Is that for developer instance? Something might have changed on backend since I have tested that

Yes, it was developer instance.

[wtrocki]

{
   "instance_types":[
      {
         "id":"developer",
         "display_name":"Trial",
         "sizes":[
            {
               "id":"x1",
               "display_name":"1",
               "quota_consumed":1,
               "quota_type":"RHOSAKTrial",
               "capacity_consumed":1,
               "maturity_status":"preview"
            }
         ]
      
         ]
      }
   ]
}

Looks like developer instances have maturity status as "preview" which doesn't seem right. We should only have x2 standard . @pb82 WDYT?

[pb82]

@wtrocki Bilgin said developer should be preview: https://issues.redhat.com/browse/MGDSTRM-8476?focusedCommentId=20262665&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-20262665

[wtrocki]

@rkpattnaik780 Tech preview from developer should be removed in 30 minutes timeframe.

[wtrocki]

Developer is now listed as stable.